Improvement in indicators



C. C. CURTISS & J. CURTIS;

' INDICATOR. No.187,8Z3. 'Patgnted Feb.27, 1877.

YWlTNESSES: INV T055.

' ATTUBHE S.

N- PETERS. PHOTO-LITHOGRAPHER, WASHINGTON. D.

UNITED STATES PATENT IMPROVEMENT mmmcA'roRs.

Specification forming part of Letters Patent No. 187,823, dated February27, 1877; application filed January 19, 1877.

To all whom it may concern Be it known that we, CHARLES C. CURTISS andJAMES CURTIS, of Chicago, in the county of Cook and State of Illinois,have invented a new and Improved Indicator, of which the following is aspecification:

In the accompanying drawing, Figure 1 represents a front view, and Fig.2 a vertical central section, of my improved office-dial, taken on line:10 aaFig. 1.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish for office-doors, or thebulletin-boards in the lower halls or stair-ways, an improved dial, onwhich a businessman, upon leaving his cffice, may

indicate with great facility whether he is in 'or out, or that he is outand back at a certain time; and the invention consistsofa base-dial,with the hours and the words In, Out, Back at marked thereon, on which,Within the outer circumference, a second partlyrecessed plate or diskisguided, and above the same one or two index-hands for indicating thetime, the recessed plate and hands being returned by a face-plate ordisk.

In the drawing, A represents the base-dial, that is attached either bytwo or more screws passing through suitable holes to the office door, orto the bulletin-board in the lower hall or stairway, or secured to thedoor by a center-bolt passing through the door and'being retained at theinside by a fastening-nut. The dial-plate A is marked along thecircumference like a watch-dial, with the numbers from 1 to 12, the partwithin the numbers being recessed to guide therein a disk-plate, B,turning on the fixed center pivot or bolt. The disk-plate B is recessedalong part of its circumference to admit, when properly set, the readingoff of the words In, or Out, or Out, back at, marked on the dial-plateA. The disk-plate B may be moved by means of a projecting pin, servingas handle, or, when at some height, by means of a pointed or hooked rod,engaging-holesor pegs of the disk-plate. The distance to which the diskB may be moved in either direction, so as to exhibit the desired wordsin proper manner, maybe controlled by a pin projecting from the underside of disk B, and moving in a guide-slot of the disk-plate, asindicated in dotted lines in Fig. 1. One or two hands, C, turn byperforated and diskshaped ends on the center pivot or bolt, and arereadily set along the dial-plate to any time at which the business-manintends to return.

They may be set in similar manner as the disk B by a rod when appliedout of reach on a bulletin-board. A top or face plate, D, retains themovable diskplate and hands C, and binds on the same, so that they donot play loose.

The face-plate may be finished in suitablp ornamental manner with number of room, busi ness-name, &c.,' marked thereon, and is attached tothe center pivot of the dial-plate by a fastening-screw, a, or by meansof a fixed bolt passing through the diskand dial plates and door, beingfastened to the latter in the manner before described.

By properlysetting the disk-plate and hands on the dial plate, the sameindicate, in a convenient manner, whether the person is in or out, andwhen the same will be back, so as to provide a cheap, durable, andreadily-set device for office and business purposes.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent i An office-dial, composed of a basedial-plate, A, attached to door or bulletin-board of a partly-recessedand movable disk-plate, B, of one or more hands, C, and of a binding topor faceplate, D, substantially in the manner and for the purpose setforth.

CHARLES oouariss. JAMES CURTIS.

Witnesses:

EMIL LIEBLING, E. G. NEWELL.

Prion.

